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Traditional click-through rate (CTR) prediction models convert the tabular data into one-hot vectors and leverage the collaborative relations among features for inferring the user's preference over items. This modeling paradigm discards…

Information Retrieval · Computer Science 2023-12-19 Xiangyang Li , Bo Chen , Lu Hou , Ruiming Tang

Sequential recommendation systems often struggle to make predictions or take action when dealing with cold-start items that have limited amount of interactions. In this work, we propose SimRec - a new approach to mitigate the cold-start…

Information Retrieval · Computer Science 2024-10-30 Shaked Brody , Shoval Lagziel

Ranking is a crucial module using in the recommender system. In particular, the ranking module using in our YoungTao recommendation scenario is to provide an ordered list of items to users, to maximize the click number throughout the…

Information Retrieval · Computer Science 2023-08-29 Shaowei Liu , Yangjun Liu

Information Retrieval (IR) systems used in search and recommendation platforms frequently employ Learning-to-Rank (LTR) models to rank items in response to user queries. These models heavily rely on features derived from user interactions,…

Information Retrieval · Computer Science 2024-12-11 Randy Ardywibowo , Rakesh Sunki , Lucy Kuo , Sankalp Nayak

Click-through rate (CTR) prediction is a vital task in industrial recommendation systems. Most existing methods focus on the network architecture design of the CTR model for better accuracy and suffer from the data sparsity problem.…

Information Retrieval · Computer Science 2023-12-19 Qi Liu , Xuyang Hou , Defu Lian , Zhe Wang , Haoran Jin , Jia Cheng , Jun Lei

Click-through rate (CTR) prediction is one of the core tasks in recommender systems. User behavior sequences, as one of the most effective features, can accurately reflect user preferences and significantly improve prediction accuracy.…

Information Retrieval · Computer Science 2026-04-28 Xiaolong Chen , Haoyi Zhao , Xu Huang , Defu Lian

Ranking product recommendations to optimize for a high click-through rate (CTR) or for high conversion, such as add-to-cart rate (ACR) and Order-Submit-Rate (OSR, view-to-purchase conversion) are standard practices in e-commerce. Optimizing…

Information Retrieval · Computer Science 2025-08-15 Michael Weiss , Robert Rosenbach , Christian Eggenberger

For many recommender systems, the primary data source is a historical record of user clicks. The associated click matrix is often very sparse, as the number of users x products can be far larger than the number of clicks. Such sparsity is…

Information Retrieval · Computer Science 2024-12-12 Julien Monteil , Volodymyr Vaskovych , Wentao Lu , Anirban Majumder , Anton van den Hengel

Click-Through Rate (CTR) prediction holds a pivotal place in online advertising and recommender systems since CTR prediction performance directly influences the overall satisfaction of the users and the revenue generated by companies. Even…

Information Retrieval · Computer Science 2024-05-22 Serdarcan Dilbaz , Hasan Saribas

Embedding & MLP has become a paradigm for modern large-scale recommendation system. However, this paradigm suffers from the cold-start problem which will seriously compromise the ecological health of recommendation systems. This paper…

Information Retrieval · Computer Science 2022-05-30 Xu Zhao , Yi Ren , Ying Du , Shenzheng Zhang , Nian Wang

Predicting Click-Through Rates is a crucial function within recommendation and advertising platforms, as the output of CTR prediction determines the order of items shown to users. The Embedding \& MLP paradigm has become a standard approach…

Information Retrieval · Computer Science 2025-04-10 Wenqiao Zhu , Lulu Wang , Jun Wu

Traditional recommender systems primarily leverage identity-based (ID) representations for users and items, while the advent of pre-trained language models (PLMs) has introduced rich semantic modeling of item descriptions. However, PLMs…

Information Retrieval · Computer Science 2024-02-15 Chen Wang , Liangwei Yang , Zhiwei Liu , Xiaolong Liu , Mingdai Yang , Yueqing Liang , Philip S. Yu

The CTR (Click-Through Rate) prediction plays a central role in the domain of computational advertising and recommender systems. There exists several kinds of methods proposed in this field, such as Logistic Regression (LR), Factorization…

Information Retrieval · Computer Science 2020-06-30 Shu Wu , Feng Yu , Xueli Yu , Qiang Liu , Liang Wang , Tieniu Tan , Jie Shao , Fan Huang

Click-Through Rate (CTR) prediction holds a paramount position in recommender systems. The prevailing ID-based paradigm underperforms in cold-start scenarios due to the skewed distribution of feature frequency. Additionally, the utilization…

Information Retrieval · Computer Science 2024-11-28 Xingmei Wang , Weiwen Liu , Xiaolong Chen , Qi Liu , Xu Huang , Yichao Wang , Xiangyang Li , Yasheng Wang , Zhenhua Dong , Defu Lian , Ruiming Tang

Recommending cold-start items is a long-standing and fundamental challenge in recommender systems. Without any historical interaction on cold-start items, CF scheme fails to use collaborative signals to infer user preference on these items.…

Information Retrieval · Computer Science 2021-07-16 Yinwei Wei , Xiang Wang , Qi Li , Liqiang Nie , Yan Li , Xuanping Li , Tat-Seng Chua

Multi-behavior recommendation faces a critical challenge in practice: auxiliary behaviors (e.g., clicks, carts) are often noisy, weakly correlated, or semantically misaligned with the target behavior (e.g., purchase), which leads to biased…

Information Retrieval · Computer Science 2026-01-22 Miaomiao Cai , Zhijie Zhang , Junfeng Fang , Zhiyong Cheng , Xiang Wang , Meng Wang

Understanding user interests is crucial for Click-Through Rate (CTR) prediction tasks. In sequential recommendation, pre-training from user historical behaviors through self-supervised learning can better comprehend user dynamic…

Information Retrieval · Computer Science 2024-07-30 Ruidong Han , Qianzhong Li , He Jiang , Rui Li , Yurou Zhao , Xiang Li , Wei Lin

With the development of multimedia systems, multimodal recommendations are playing an essential role, as they can leverage rich contexts beyond interactions. Existing methods mainly regard multimodal information as an auxiliary, using them…

Information Retrieval · Computer Science 2024-08-02 Yifan Liu , Kangning Zhang , Xiangyuan Ren , Yanhua Huang , Jiarui Jin , Yingjie Qin , Ruilong Su , Ruiwen Xu , Yong Yu , Weinan Zhang

In recommendation systems, new items are continuously introduced, initially lacking interaction records but gradually accumulating them over time. Accurately predicting the click-through rate (CTR) for these items is crucial for enhancing…

Information Retrieval · Computer Science 2024-07-16 Yaqing Wang , Hongming Piao , Daxiang Dong , Quanming Yao , Jingbo Zhou

Click-through rate (CTR) prediction has become increasingly indispensable for various Internet applications. Traditional CTR models convert the multi-field categorical data into ID features via one-hot encoding, and extract the…

Information Retrieval · Computer Science 2024-06-27 Jianghao Lin , Bo Chen , Hangyu Wang , Yunjia Xi , Yanru Qu , Xinyi Dai , Kangning Zhang , Ruiming Tang , Yong Yu , Weinan Zhang